505241540 has 48 divisors (see below), whose sum is σ = 1140652800. Its totient is φ = 187379712.

The previous prime is 505241533. The next prime is 505241557. The reversal of 505241540 is 45142505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3716 + ... + 32004.

It is an arithmetic number, because the mean of its divisors is an integer number (23763600).

Almost surely, 2^505241540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505241540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570326400).

505241540 is an abundant number, since it is smaller than the sum of its proper divisors (635411260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505241540 is a wasteful number, since it uses less digits than its factorization.

505241540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28364 (or 28362 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 505241540 is about 22477.5786062467. The cubic root of 505241540 is about 796.4643658840.

The spelling of 505241540 in words is "five hundred five million, two hundred forty-one thousand, five hundred forty".